Event; Audio - Clinton Electronics Shadow Pro User Manual

Event:

These settings define the recording parameters before and after an event occurs.
PRE-RECORD: Set the record time before an event occurs. (The DVR will continuously store footage for the selected
"Pre-Record" time and then save that data when an event actually occurs.)
POST RECORD: Set the record time that you wish to record after an event occurs.

Audio:

RECORD:
Select ON to enable audio recording for the corresponding channel. An audio device must be connected
to the back of the DVR.
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RECORD > Event & Audio